Backend category tree display issues

-- HikaShop version -- : latest

Hey,

At my root, on the categories backend page, I have two different views, the one on the left in a branching tree format and the one on the right (main view) with the name/config options/filter options.

The tree format is really screwed up. It has categories displayed at root that exist elsewhere. When you browse using the right view, everything is fine, but when you browse with the tree, everything is screwed up. The frontend is fine / unaffected, it is a problem with the tree view.

Is this a bug or a database issue? Rebuild doesn't fix it. Also, how come on the frontend it is fine, and only the tree view is messed up at root.

Example tree:
0 Root
1 Products
2 Test Category A
3 Sub Category 1A
3 Sub Category 2A
0 Sub Category 3A (showing at root, not below 'Test Category' in the tree view)
0 Test Category B (also at root, but only in the tree view, the frontend displays properly)